Furnace-valve.



PATENTEB APR: I`. 1908.

J. Bi Mmmm?, FURNAGB VAL-VB. I APPLIOATIOH' FILED MAY 1906.

PATENTE@ APR. 7, 1490s.

' J. B. MCKBNNAN.

FURNACE VALVE.

APPLIGATIGN FILED my 14,1906.

2 SHEETS-SHBET 2.

l il.

Gwh: eases @W m,

uNiTnD Y sTATns PATENT onirica.

`TACOB BOWMAN MCKENNAN, OF PUEBLO, COLORADO. .i

i FURNAcE-VALVE.

To. all whom it may concern.'

Beit known that I, JACOBBOWM'AN Mof ENNAN, aV citizen of the UnitedStates, residing at Pueblo, in the county of Pueblo and State of Colorado, have invented certain new and usefulImprovements in Furnace-Valves,

' ofwhich vthe following is a specification.

a'pair of parallel lues, draft-fiue's,

- valves' for furnaces,

trated in the accompanying drawings, in

which:

Figure 1 is a plan of one form o-niy iinproved valve; Fig. 2 is a plan of the waterpan for same; Fig. 3 is a section on the line II-III of both valve and pan, lshowing them assembled and the valve closed; Fig. 4 is a'section on the same line showing the valve fully open; Fig. 5 is a section on aline corresponding to the line III-III of 1 of a modified form of alve'adapted to be watercooled; Fig'. 6 is a'section on the line VI-VI of Fig. 2; Fig. 7 is a plan of a further modication adapted for use with 'lues of rectangular section; Fig. 8 is a section on the line VIII-VIII of Fig.V 7; Fig. 9 is aplan of a further modification in which the valve is adapted to be given a short lift and partial -Totation Fig. 10 1s a section on the line X`X of Fig. 9,' showing the valve closed, and Fig.

` 11 'is a section on line'X'fX ofthe water- Ban portion of Fig. 9, but showing the valve 'fted and rotate'dQO".`

1 is the valve-hood, preferably of malleable metal; provided with a comparatively-dee peripheral flange 2, and a narrower, or sha ower, intermediate interior flange 3, which may be solid as in Figs. 1 to 5, orwater cooled as in the remaining figures; 4 is any suitable attachment for'the' lifting mechanism or stem (not shown).

The water pan 5, also preferably of malleable metal, is provided with a comparativelydeep peripheral trough 6 and with a shallower, transverse intermediate trough 7; the

I trough 6 surrounding the extremities of the `whic palred', vertical flue-terminals 8, 8 and the trou h 7 resting upon the top'of the wall 9 separatesthe flues. v

the hood through any having a diametrica 1s raised only y ment, -the flues are alwaysconnected 1n' pairs, and the valve" is not'capable of use as a Patented April v, 1908.

The water-pan and valve are referably circularin plan and the parallel ues semicircularin section; though the valve may be adapted to systems already' installed and having flues rectangular vin section; as shown in Figs. 7 and 8. l

In the Inodiiicati'on shown inlFigsflO and I1, the peripheral trough 6 is made shallower, the diametrical partition-fiange deeper, and the'valve adapted to .operate with a much shorter lift. f i V' The operation is as follows :'-Assuming that the valve is provided with lifting mechanisin constructed andarranged to lift the hood any desired distance ancLsupport it at anv desired point, and starting-from the closed and water-sealed positions of Figs. 3

and .10, the flowof gas, air or products of combustion may be started and regulated as desired, by raisingthe valve to the required extent; thus connecting t-he flue-terminals without breaking the outer water-seal, because of the greater depth of the marginal hood-iange.

. In the inodiiication illustrated in Figs. 10 and 11, the hood-chambers are of greater depth, and the flow may be regulated by ralsing the valve until the partition-flange 3 clears the edges of the trough 7 and rotating desired an le u `oint the valve wil be fully esser amount of rotation will ow any desired flow of fluid between the ue-terminals as will be readily apparent.

It will be understood that lsuitable pro- 90-; at which opened. a l il vision is made for maintaining the water- I level in the sealing-pan practically constant.

I am aware that water-sealed reversingvalves have been designed in which four flue-terminals are ca artition of substantially the same deptli as the peripheral flange and'arrangedto permit the passage of-iiuids betweenpairs of such terminals in a' direction parallel to the length of the hoodpartition but in such construction the hood during the'reversing movesimp-le opening-and-closing valve.

Many chan es may be made in my construction by. t ose skilled in the art, without de artin lfrom iny'invention, since at claim isl.. A furnace valve structure comprising a plurality of coterminous vertical flues, a

ped by a valve-hood water-pan surrounding andseparating said lues, and a lift-valve having a transverse partition, and an integral upturned iiange dee er than the valve hood, to forma Watercoo ing chamber for the hood-top and rim; said valve being adapted, when seated, to seal from each other all ilues controlled thereby; substantially as'described.

2. A. furnace valve structure comprising a pair of coterminous vertical iues, a waterpan surrounding and -separating said lues, said separating portion being of'less depth than the marginal portion, and an integral lift hood having an upturned flange extending above .the hood-top and a water cooled partition of loos dopth thon tho hood aofi lada ted to seat in the flue-separating portion of t e water-pan; substantially as described.

3. Ina furnace valve, in combination,y a Water-pan constituting the terminal of each of a plurality of parallel iiues, said pan'having peripheral and diametrical channels, and av valve hood having marginal flanges andmanl intermediate. partition of less depth than said iange's, Said valve being constructed and arranged to seal each of said flue-terminals when in closed position, and to be raised'and rotated to permit and control the iiow 'of fluid between said flues; substantially as described. I

4. In a furnace valve, in combination, a water-pan constituting the terminal of each of a plurality ing peripheral and diametrical channels, and a valve hood having water-cooled marginal flanges and an intermediate water-cooled partitlongof less depth than said flanges, said valve being constructed andarranged to seal each of said flue-terminals when in closed position, and to be raised and rotated to permit and control the low of fluidbetweensaid lues; substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JACOB BOWMAN MCKENNAN. Witnesses:

JAS. H. ROBINSON,

H. CozzENs.

of parallel iiues, said pan h'av-` 

